Switch



S. B, COHEN.

SWITCH.

APPLICATION FILED MAY 23. 1919.

Patented Mar. 1, 1921.

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l l c Liners 9 Specification. .of Letters Patent.

Putcnted Mora. ll, 19721" application filed may 23, 3.9155. Serial No. 299,229.

. ZZ whom t ma z concern: w

. -.t Known. tn l).

e L. SAMUEL Conner, e United and residing at i the county of New York and York, have invented certain llowing is a. specification, slnlled 1n the art to Same."

This

. I to provide e which is ado l cction by hand. "ection hv tensionel device; '1? and otl objects in view the wili J. inven. on consists a device of the class specified which is simple in construction and. operat" n and eflicient in use.

The invention is fully disclosed in the following specification, of which the accompanying druwinp forms a part, in which the separate parts or my improvement are designated by suitable re Terence characters in each of the views, and in which r-- Figure 1 is a central longitudinal section through my improved switch device, the section taken on the line l---1 of" Fig. 2; and. o

2 sectional plan view on the line 22 of Fig. 1.

ln'the, drawing l have s own at 5 a: suit-- able hase board o support preferably composed of non conducting materieh and 21th is shown a hon-shaped casing mounted on top end adapted to us acover for the base The casing 6 may be secured to the base 5 in any desired manner.

Mounted centrally and longitudinally the top face of the base 5 is a strip '7. the opposite ends oi w :h are bent upwardly to lorm hearings 8 and. '9 in which is mounted e shaft U), which is adapted to GE'ZlIQDCl outwardlv through one side of the casing 6 as shown at 11, and pivoted to the end thereof is an operating handle member 12, the inner end of which is forked as shown at 13 and the free ends of the forked portion 13 are rounded as shown at 14 and adapted to bear on and operate connection with the adjacent side of the casing: as clearly shown in tho dra. ecurcd inirovcinents in Switches,

vices l5 and l6 and a fork-shaped switch member 17, comprising two contact blade members 18 secured in a transverse non-conducting head 19, is mounted on the shaft and aidepted to be moved therewith to bring the contact blade members 18 of the fork- -shaped switch device into engagement with 'one or both pair of spring Contact devices 15 and 16.,

The yolce-shaped switch device is held on the shaft a transverse pin and a spiral Spring 21, which moves the cross head 19 of the switch device into engagement with the i in 20, said spring being; adapted to bear on operate in connection'with the bearing member 9 as clearly shown.

-.he position of the switch member 17 shown in full lines in Figs. 1 and 52 is the in operative position thereof or the switch is in an open position, and in this position it will be noted that the switch member 17 is held against inward movement by the forkshuped portion 13 of the handle member 12, the rounded end portions 14 of which bear on the wall of the casino 6. but by moving the handle member 12 to the left or to the right, the spring 21 will move the switch member 17 inwardly or move the contact blade members 18 into engagement; with the pairof spring;- contact devices '15 as indicated in dotted lines in Fig. 2 and thus close the circuit. ln order to again open the circuit, 7 or to move the switch device from the dotted line position shown in Fig. 2 to the full line position shown therein, the handle member 12 is grasped and moved outwardly against the tension of the spring: 21 until said handle member is in the position shown in full lines in Fig. 2,;in which position the switch memher 1"! is again hold in its inoperative position.

It will he apparent that my improved switch device is very simple in operation and efiicient in use and all possibility of receiving shocks by the operator coming in contact with the electric circuit is obviated, and while I have shown what is ,known as a forked switch or a twobladed switch device, it will be understood that my invention may be used in connection with what are known as knife switches well what is known as three or four hlede switches, and various changes in and modifications or? the details of cons suction hcrein shown described may he made. within the scope of she appended claims with out departing; from the spirit inven- 'ii'ion or sacrificing its mlvanhiges fork-shaped SWlfiCll member Having fully described, my invention, What 1 claim as new and flS1?f% to secure by Letters iatenh 1s:-

3; A switch device of (Tie class described comprising suitable base tive position with the contact blades therefella-shaped switch member of in engagement with one pair of Contact devices only, and resilient means for movmg the contact blades of the switch member into engagement Wilr Elie other pair of conmoi; devices end for holding said blades in en's with the later pair of conivccc comprising a suitable base. or s'npporh mounted to movelongitudinally oi the lozise and comprising a plurality of contact blades inonmz ed in an insulated sn 'iport a plurality of spring: contact devices mounted on the base and in coni'iocl'ion with which thecon'tact blades of the switch member are adapted to operate, a handle member in operative connection with she siich member and by means of which the switch maybe moved into an inoperative position, tensional means for moving the switch member into an operative posiiion and for holcl ing the same in saicl position. and means on sairl handle member and operated 'iherchy for holding the switch manner in its inoperative position zigziinsi ighe action oi said tensionsl means,

3. A switchdevice of the class described coinprising ii suitable casing, ii. piiirali oy of electric contact devices in said casing RL'" ranged in pairs longiiuriinallyo'f said cos ing,'zi fork-shaped switch member movably mounted in said casing and provided \vilh blades which are adapted to,operzite in connection with the separate pairs-of contact devices in said casing, said switch member proiruding through one end. ti e casing a fl I of into en u ient with the other contact c on between when ihe lost neinecl means is releesecl, sziiti nsionzil means also functioning iiOlai "n.u oiacles in engagement With the last named contact rievices.

A switch device comprising a base car rying a plurality of :ilined bearings, a pinrality of pairs of contaci'; devices, an axially sliduble i-oil mounteol in said bearings and earring an insulated cross-heed provided with pinralityoi? conflict blades which engage one pair of the Contact devices it all devices in each pair to close the circnii theretimes and which are movable into and oni) hi k ilw'ues and for locking the rod in position in which the blames are disco geil from the less nmnecl contact devices. 5, switch device 01" the kinri defined by claim in which the last named means consists of ii handle having its intermediate portion pivoislly connected to said rod saiol handle being edcpize to he move i into c away from the seconrl pair of con.

ulinement with said reel to cause one enii of the hand z-t-o engage one of said bearings l bile for hoiclin Wlilll the second pair of contact devices, siicl Y ales '40 ssicl we to permit spring to move said rod.

.ln Ill claim the foregoingas testimony n 1117 invention 1 have 51 need in name in presence of the subscribing" Witnesses this 21st day of May, 1919.

f SAMUEL B. CGHEN.

Witnesses: v

(l. MlULBEANY, H. THOMEPEBON.

.9] i to e oeiiig me more new a position an blades out of engegemesi- 

